The Cat® 309 CR Mini Excavator delivers maximum power and performance in a mini size to help you work in a wide range of applications.
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Engine
- Net Power
- 69.5 hp
- Engine Model
- Cat C3.3B
- Displacement
- 203 in³
- Bore
- 3.7 in
- Stroke
- 4.7 in
- Gross Power - SAE J1995
- 74.3 hp
- Rated Net Power - 2,200 rpm - U.S. EPA Tier 4 Final/EU Stage V - ISO 9249/EEC 80/1269
- 69.5 hp
Weights
- Operating Weight
- 21,091 lb
- Maximum Operating Weight with Cab**
- 21,091 lb
- Note (1)
- *Minimum Weight is based on steel tracks, no counterweight, operator, full fuel tank, standard stick, blade and no bucket.
- Note (2)
- **Maximum Weight is based on steel tracks with rubber pads, counterweight, operator, full fuel tank, long stick, blade and no bucket.
- Minimum Operating Weight with Cab*
- 19,735 lb
Dimensions - Long Stick
- Dig Depth
- 182.8 in
- Boom In Reach
- 126.6 in
- O/A Undercarriage Length
- 126 in
- O/A Track Width
- 97.2 in
- Stick Length
- 92.8 in
- Maximum Blade Height
- 16.1 in
- Maximum Reach
- 300.7 in
- Cab Height
- 100 in
- Ground Clearance
- 14 in
- Boom Swing - Left
- 23.8 in
- Note
- *Boom Height when stick is pinned in transport position with no attachments.
- Note (2)
- ***With blade positioned at the rear of the machine.
- Note (1)
- **Boom Height when stick is pinned in working position with attachments Standard Stick offers only one pin position.
- Overall Shipping Length - with Counterweight
- 7,052 mm (277.6 in)***
- Overall Shipping Length - without Counterweight
- 7,052 mm (277.6 in)***
- Maximum Dump Clearance
- 199.7 in
- Vertical Wall
- 134 in
- Maximum Blade Depth
- 26 in
- Maximum Dig Height
- 277.1 in
- Tail Swing with Counterweight
- 62.4 in
- Swing Bearing - Height
- 29.7 in
- Track Belt/Shoe Width
- 17.7 in
- Boom Swing - Right
- 36.8 in
- Tail Swing without Counterweight
- 57.1 in
- Maximum Reach - Ground Level
- 293.7 in
- Height - Boom Transport - No Tools*
- 89 in
- Height - Boom Working - With Tools**
- 120.1 in
Blade
- Height
- 17 in
- Width - Wide
- 104 in
- Width - Standard
- 97 in
Specifications
- Note
- The 309 CR specifications are based on a machine configured with a Long (L) Undercarriage.
Travel System
- Gradeability - Maximum
- 30 degrees
- Ground Pressure - Minimum Weight
- 5 psi
- Travel Speed - High
- 3.1 mile/h
- Travel Speed - Low
- 1.6 mile/h
- Maximum Traction Force - High Speed
- 6,497 lb
- Maximum Traction Force - Low Speed
- 19,064 lb
- Ground Pressure - Maximum Weight
- 5.4 psi
Service Refill Capacities
- Engine Oil
- 3 gal (US)
- Fuel Tank
- 39 gal (US)
- Hydraulic System
- 29 gal (US)
- Cooling System
- 2.6 gal (US)
- Hydraulic Tank
- 14 gal (US)
Hydraulic System
- Type
- Load Sensing Hydraulics with Variable Displacement Piston Pump
- Operating Pressure - Swing
- 3,626 psi
- Digging Force - Stick - Standard
- 9,500 lb
- Digging Force - Stick - Long
- 8,023 lb
- Operating Pressure - Travel
- 4,134 psi
- Pump Flow at 2,400 rpm
- 62 gal/min
- Digging Force - Bucket
- 13,943 lb
- Operating Pressure - Equipment
- 4,134 psi
- Note
- Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
- Maximum Auxiliary Circuit - Secondary - Flow at Pump
- 9 gal/min
- Maximum Auxiliary Circuit - Primary - Pressure at Pump
- 4,134 psi
- Maximum Auxiliary Circuit - Primary - Flow at Pump
- 35 gal/min
- Maximum Auxiliary Circuit - Secondary - Pressure at Pump
- 4,134 psi
- Maximum Auxiliary Circuit - High Flow - Pressure at Pump
- 4,134 lbf/in
- Maximum Auxiliary Circuit - High Flow - Flow at Pump
- 37 gal/min
Swing System
- Machine Swing Speed
- 10.6 r/min
- Boom Swing - Right
- 50 degrees
- Boom Swing - Left
- 60 degrees
Certification - Cab
- Roll Over Protective Structure (ROPS)
- ISO 12,117-2:2,008
- Top Guard
- ISO 10,262:1,998 (Level I)
- Tip Over Protective Structure (TOPS)
- ISO 12,117:1,997
Sound
- Note
- European Union Directive "2,000/14/EC"
- Operator Sound Pressure (ISO 6396:2008)
- 72 dB(A)
- Average Exterior Sound Pressure (ISO 6395:2008)
- 99 dB(A)
Dimensions - Standard Stick
- Boom Swing - Right
- 36.8 in
- Cab Height
- 100 in
- Maximum Reach
- 281.1 in
- Boom In Reach
- 120.4 in
- Note
- *Boom Height when stick is pinned in transport position with no attachments.
- Note (2)
- ***With blade positioned at the rear of the machine.
- Note (1)
- **Boom Height when stick is pinned in working position with attachments Standard Stick offers only one pin position.
- Maximum Dump Clearance
- 187.4 in
- Tail Swing without Counterweight
- 57.1 in
- Maximum Reach - Ground Level
- 273.6 in
- O/A Undercarriage Length
- 126 in
- Swing Bearing - Height
- 29.7 in
- Maximum Dig Height
- 265.2 in
- Track Belt/Shoe Width
- 17.7 in
- O/A Track Width
- 97.2 in
- Ground Clearance
- 14 in
- Tail Swing with Counterweight
- 62.4 in
- Vertical Wall
- 117.8 in
- Dig Depth
- 161.7 in
- Stick Length
- 71.8 in
- Boom Swing - Left
- 23.8 in
- Maximum Blade Height
- 16.1 in
- Maximum Blade Depth
- 26 in
- Overall Shipping Length - without Counterweight
- 266.7 in
- Overall Shipping Length - with Counterweight
- 266.7 in
- Height - Boom Transport - No Tools*
- 95.7 in
- Height - Boom Working - With Tools**
- 104.7 in
Air Conditioning System
- Air Conditioning
- The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1,430). The system contains 1.0 kg of refrigerant which has a CO2 equivalent of 1.430 metric tonnes.
Sustainability
- Recyclability
- 96%
Weight Increase from Minimum Configuration
- Steel Tracks with Pads
- 728 lb
- Long Stick
- 146 lb
- Counterweight
- 552 lb
Standard Equipment:
-
- Engine
-
- Cat C3.3B Diesel Engine (U.S. EPA Tier 4 Final/EU Stage V) – Electronic Engine, Turbo, Diesel Particulate Filter (DPF)
- Automatic Engine Idle
- Automatic Engine Shutdown
- Automatic Swing Brake
- Automatic Two Speed Travel
- Fuel Water Separator with Indicator
- Radial Seal – Double Element Air Filter
- Extended Life Coolant, –37° C (–35° F)
-
- Hydraulics
-
- Electronic Variable Displacement Piston Pump
- Load Sensing/Flow Sharing Hydraulics
- Dedicated Auxiliary Hydraulic Pump
- Power On Demand
- Hydraulic Temperature Monitoring
- Certified Accumulator
- HYDO Advanced Hydraulic Oil
- Ecology Drain
-
- Operator Environment
-
- Top Guard ISO 10262 1998 Level I
- ROPS ISO 12117-2:2008
- Stick Steer Mode
- Travel Cruise Control
- Control Pattern Changer
- Adjustable Wrist Rests
- Molded Footrests
- Removable, Washable Floor Mat
- Travel Pedals and Hand Levers
- Cat Key with Passcode Option
- HVAC with Automatic Temperature Control
- Hydraulic Lockout Controls
- Integrated Lower Front Window
- Assisted Front Window Overhead Storage
- Rear Window Emergency Exit
- Fabric, High Back, Suspension Seat
- Retractable Seat Belt (75 mm/3 in)
- Coat Hook
- Cup Holder
- LED Interior Light
- Literature Holder
- Mounting Bosses for Top and Front Guards
- 12V Power Socket
- Radio – Bluetooth, Auxiliary, Microphone, USB (charging only)
- Skylight
- Signaling/Warning Horn
- Cab and (left side) Boom Work Lights
- Utility Space for Mobile Phone
- Next Generation Color LCD Monitor (IP66)
– Jog Dial Interface
– Fuel Level and Coolant Temperature Gauges
– Maintenance and Machine Monitoring
– Performance and Machine Adjustments
– Numeric Security Code
– Multiple Languages
– Camera Ready (IP68 & IP69K)
– Hour Meter with Wake Up Switch
-
- Undercarriage
-
- Greased and Lubricated Track
- Tie Down Eyes on Track Frame
- Dozer Blade
- Dozer Float
- Bolt-on, Reversible Wear Edge
-
- Boom, Stick And Linkages
-
- One Piece Boom (3400 mm/133.9 in)
- Standard Stick (1820 mm/71.7 in)
- Front Shovel Capable – Pin-on/Manual Coupler/Hydraulic Coupler (not available in all regions)
- Thumb Ready (not available in all regions)
-
- Electrical
-
- 12 Volt Electrical System
- 60 Ampere Alternator
- Circuit Breaker
- 900 CCA Maintenance Free Battery
- Battery Disconnect
- Ignition Key Stop Switch
- Travel Alarm
-
- Other
-
- Locks on External Enclosure Doors
- Lockable Fuel Cap
- Beacon Socket
- Rear Reflectors
Optional Equipment:
-
- Operator Environment
-
- Push to Start with Bluetooth® Key
- Air Suspension Heated Seat
- Rain Visor
- Next Generation Advanced Monitor (below are all included with Next Generation Advanced Monitor option)
– Touch Screen
– Site Reference System
– High Definition Camera Capable (IP68 & IP69K)
– Numeric Security Code
-
- Undercarriage
-
- Wide Dozer Blade
- Steel Tracks (450 mm/17.7 in wide)
- Wide Steel Tracks (600 mm/23.6 in)
- Steel Track with Rubber Pads
- Track Guides
-
- Boom, Stick And Linkages
-
- Long Stick (2360 mm/92.9 in)
- Attachments including Buckets, Augers and Hammers
- 2nd Auxiliary Hydraulic Lines with Case Drain
- Boom Lowering Check Valve
- Stick Lowering Check Valve
- Certified Lifting Eye
-
- Electrical
-
- Product Link™ Elite (regulations apply)
- Rearview Camera
- Rotating Beacon
-
- Guarding
-
- Mesh Front Guard ISO 10262 1998 Level I
- Heavy Duty Front Guard ISO 10262 1998 Level II
- Top Guard ISO 10262 1998 Level II
- Polycarbonate Front Window EN356 P5A (Cab Only)
- Track Guards
-
- Other
-
- Additional Counterweight
- Water Jacket Heater
- Refueling Pump
- Variable Angle Boom (refer to 309 CR VAB brochure for VAB specs and additional information)
Specifications
Engine
- Net Power
- 69.5 hp
- Engine Model
- Cat C3.3B
- Displacement
- 203 in³
- Bore
- 3.7 in
- Stroke
- 4.7 in
- Gross Power - SAE J1995
- 74.3 hp
- Rated Net Power - 2,200 rpm - U.S. EPA Tier 4 Final/EU Stage V - ISO 9249/EEC 80/1269
- 69.5 hp
Weights
- Operating Weight
- 21,091 lb
- Maximum Operating Weight with Cab**
- 21,091 lb
- Note (1)
- *Minimum Weight is based on steel tracks, no counterweight, operator, full fuel tank, standard stick, blade and no bucket.
- Note (2)
- **Maximum Weight is based on steel tracks with rubber pads, counterweight, operator, full fuel tank, long stick, blade and no bucket.
- Minimum Operating Weight with Cab*
- 19,735 lb
Dimensions - Long Stick
- Dig Depth
- 182.8 in
- Boom In Reach
- 126.6 in
- O/A Undercarriage Length
- 126 in
- O/A Track Width
- 97.2 in
- Stick Length
- 92.8 in
- Maximum Blade Height
- 16.1 in
- Maximum Reach
- 300.7 in
- Cab Height
- 100 in
- Ground Clearance
- 14 in
- Boom Swing - Left
- 23.8 in
- Note
- *Boom Height when stick is pinned in transport position with no attachments.
- Note (2)
- ***With blade positioned at the rear of the machine.
- Note (1)
- **Boom Height when stick is pinned in working position with attachments Standard Stick offers only one pin position.
- Overall Shipping Length - with Counterweight
- 7,052 mm (277.6 in)***
- Overall Shipping Length - without Counterweight
- 7,052 mm (277.6 in)***
- Maximum Dump Clearance
- 199.7 in
- Vertical Wall
- 134 in
- Maximum Blade Depth
- 26 in
- Maximum Dig Height
- 277.1 in
- Tail Swing with Counterweight
- 62.4 in
- Swing Bearing - Height
- 29.7 in
- Track Belt/Shoe Width
- 17.7 in
- Boom Swing - Right
- 36.8 in
- Tail Swing without Counterweight
- 57.1 in
- Maximum Reach - Ground Level
- 293.7 in
- Height - Boom Transport - No Tools*
- 89 in
- Height - Boom Working - With Tools**
- 120.1 in
Blade
- Height
- 17 in
- Width - Wide
- 104 in
- Width - Standard
- 97 in
Specifications
- Note
- The 309 CR specifications are based on a machine configured with a Long (L) Undercarriage.
Travel System
- Gradeability - Maximum
- 30 degrees
- Ground Pressure - Minimum Weight
- 5 psi
- Travel Speed - High
- 3.1 mile/h
- Travel Speed - Low
- 1.6 mile/h
- Maximum Traction Force - High Speed
- 6,497 lb
- Maximum Traction Force - Low Speed
- 19,064 lb
- Ground Pressure - Maximum Weight
- 5.4 psi
Service Refill Capacities
- Engine Oil
- 3 gal (US)
- Fuel Tank
- 39 gal (US)
- Hydraulic System
- 29 gal (US)
- Cooling System
- 2.6 gal (US)
- Hydraulic Tank
- 14 gal (US)
Hydraulic System
- Type
- Load Sensing Hydraulics with Variable Displacement Piston Pump
- Operating Pressure - Swing
- 3,626 psi
- Digging Force - Stick - Standard
- 9,500 lb
- Digging Force - Stick - Long
- 8,023 lb
- Operating Pressure - Travel
- 4,134 psi
- Pump Flow at 2,400 rpm
- 62 gal/min
- Digging Force - Bucket
- 13,943 lb
- Operating Pressure - Equipment
- 4,134 psi
- Note
- Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
- Maximum Auxiliary Circuit - Secondary - Flow at Pump
- 9 gal/min
- Maximum Auxiliary Circuit - Primary - Pressure at Pump
- 4,134 psi
- Maximum Auxiliary Circuit - Primary - Flow at Pump
- 35 gal/min
- Maximum Auxiliary Circuit - Secondary - Pressure at Pump
- 4,134 psi
- Maximum Auxiliary Circuit - High Flow - Pressure at Pump
- 4,134 lbf/in
- Maximum Auxiliary Circuit - High Flow - Flow at Pump
- 37 gal/min
Swing System
- Machine Swing Speed
- 10.6 r/min
- Boom Swing - Right
- 50 degrees
- Boom Swing - Left
- 60 degrees
Certification - Cab
- Roll Over Protective Structure (ROPS)
- ISO 12,117-2:2,008
- Top Guard
- ISO 10,262:1,998 (Level I)
- Tip Over Protective Structure (TOPS)
- ISO 12,117:1,997
Sound
- Note
- European Union Directive "2,000/14/EC"
- Operator Sound Pressure (ISO 6396:2008)
- 72 dB(A)
- Average Exterior Sound Pressure (ISO 6395:2008)
- 99 dB(A)
Dimensions - Standard Stick
- Boom Swing - Right
- 36.8 in
- Cab Height
- 100 in
- Maximum Reach
- 281.1 in
- Boom In Reach
- 120.4 in
- Note
- *Boom Height when stick is pinned in transport position with no attachments.
- Note (2)
- ***With blade positioned at the rear of the machine.
- Note (1)
- **Boom Height when stick is pinned in working position with attachments Standard Stick offers only one pin position.
- Maximum Dump Clearance
- 187.4 in
- Tail Swing without Counterweight
- 57.1 in
- Maximum Reach - Ground Level
- 273.6 in
- O/A Undercarriage Length
- 126 in
- Swing Bearing - Height
- 29.7 in
- Maximum Dig Height
- 265.2 in
- Track Belt/Shoe Width
- 17.7 in
- O/A Track Width
- 97.2 in
- Ground Clearance
- 14 in
- Tail Swing with Counterweight
- 62.4 in
- Vertical Wall
- 117.8 in
- Dig Depth
- 161.7 in
- Stick Length
- 71.8 in
- Boom Swing - Left
- 23.8 in
- Maximum Blade Height
- 16.1 in
- Maximum Blade Depth
- 26 in
- Overall Shipping Length - without Counterweight
- 266.7 in
- Overall Shipping Length - with Counterweight
- 266.7 in
- Height - Boom Transport - No Tools*
- 95.7 in
- Height - Boom Working - With Tools**
- 104.7 in
Air Conditioning System
- Air Conditioning
- The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1,430). The system contains 1.0 kg of refrigerant which has a CO2 equivalent of 1.430 metric tonnes.
Sustainability
- Recyclability
- 96%
Weight Increase from Minimum Configuration
- Steel Tracks with Pads
- 728 lb
- Long Stick
- 146 lb
- Counterweight
- 552 lb
Standard/Optional Features
Standard Equipment:
-
- Engine
-
- Cat C3.3B Diesel Engine (U.S. EPA Tier 4 Final/EU Stage V) – Electronic Engine, Turbo, Diesel Particulate Filter (DPF)
- Automatic Engine Idle
- Automatic Engine Shutdown
- Automatic Swing Brake
- Automatic Two Speed Travel
- Fuel Water Separator with Indicator
- Radial Seal – Double Element Air Filter
- Extended Life Coolant, –37° C (–35° F)
-
- Hydraulics
-
- Electronic Variable Displacement Piston Pump
- Load Sensing/Flow Sharing Hydraulics
- Dedicated Auxiliary Hydraulic Pump
- Power On Demand
- Hydraulic Temperature Monitoring
- Certified Accumulator
- HYDO Advanced Hydraulic Oil
- Ecology Drain
-
- Operator Environment
-
- Top Guard ISO 10262 1998 Level I
- ROPS ISO 12117-2:2008
- Stick Steer Mode
- Travel Cruise Control
- Control Pattern Changer
- Adjustable Wrist Rests
- Molded Footrests
- Removable, Washable Floor Mat
- Travel Pedals and Hand Levers
- Cat Key with Passcode Option
- HVAC with Automatic Temperature Control
- Hydraulic Lockout Controls
- Integrated Lower Front Window
- Assisted Front Window Overhead Storage
- Rear Window Emergency Exit
- Fabric, High Back, Suspension Seat
- Retractable Seat Belt (75 mm/3 in)
- Coat Hook
- Cup Holder
- LED Interior Light
- Literature Holder
- Mounting Bosses for Top and Front Guards
- 12V Power Socket
- Radio – Bluetooth, Auxiliary, Microphone, USB (charging only)
- Skylight
- Signaling/Warning Horn
- Cab and (left side) Boom Work Lights
- Utility Space for Mobile Phone
- Next Generation Color LCD Monitor (IP66)
– Jog Dial Interface
– Fuel Level and Coolant Temperature Gauges
– Maintenance and Machine Monitoring
– Performance and Machine Adjustments
– Numeric Security Code
– Multiple Languages
– Camera Ready (IP68 & IP69K)
– Hour Meter with Wake Up Switch
-
- Undercarriage
-
- Greased and Lubricated Track
- Tie Down Eyes on Track Frame
- Dozer Blade
- Dozer Float
- Bolt-on, Reversible Wear Edge
-
- Boom, Stick And Linkages
-
- One Piece Boom (3400 mm/133.9 in)
- Standard Stick (1820 mm/71.7 in)
- Front Shovel Capable – Pin-on/Manual Coupler/Hydraulic Coupler (not available in all regions)
- Thumb Ready (not available in all regions)
-
- Electrical
-
- 12 Volt Electrical System
- 60 Ampere Alternator
- Circuit Breaker
- 900 CCA Maintenance Free Battery
- Battery Disconnect
- Ignition Key Stop Switch
- Travel Alarm
-
- Other
-
- Locks on External Enclosure Doors
- Lockable Fuel Cap
- Beacon Socket
- Rear Reflectors
Optional Equipment:
-
- Operator Environment
-
- Push to Start with Bluetooth® Key
- Air Suspension Heated Seat
- Rain Visor
- Next Generation Advanced Monitor (below are all included with Next Generation Advanced Monitor option)
– Touch Screen
– Site Reference System
– High Definition Camera Capable (IP68 & IP69K)
– Numeric Security Code
-
- Undercarriage
-
- Wide Dozer Blade
- Steel Tracks (450 mm/17.7 in wide)
- Wide Steel Tracks (600 mm/23.6 in)
- Steel Track with Rubber Pads
- Track Guides
-
- Boom, Stick And Linkages
-
- Long Stick (2360 mm/92.9 in)
- Attachments including Buckets, Augers and Hammers
- 2nd Auxiliary Hydraulic Lines with Case Drain
- Boom Lowering Check Valve
- Stick Lowering Check Valve
- Certified Lifting Eye
-
- Electrical
-
- Product Link™ Elite (regulations apply)
- Rearview Camera
- Rotating Beacon
-
- Guarding
-
- Mesh Front Guard ISO 10262 1998 Level I
- Heavy Duty Front Guard ISO 10262 1998 Level II
- Top Guard ISO 10262 1998 Level II
- Polycarbonate Front Window EN356 P5A (Cab Only)
- Track Guards
-
- Other
-
- Additional Counterweight
- Water Jacket Heater
- Refueling Pump
- Variable Angle Boom (refer to 309 CR VAB brochure for VAB specs and additional information)